I am wondering since I would like to upgrade to a geniune Aimpoint, which one is the best. I am a LEO but I doubt if I will ever be able to use the Night vision for it so which grade is the best for the money? Could someone give me a quick rundown on the options and who sells them the cheapest on EE? Or anyonw have any used ones in exxcellent condition for sale?

Here you go.... Aimpoint Info

I own several Aimpoints and find them very robust!  The major improvements over the years really have been to extend battery life.  Here is the info on perhaps the most common one...the CompML2 CompML2 Info

Many of our board dealers carry these.  If funds permit, you might also consider the Trijicon Tri-power.  I like this optic for duty work as during the day shift, the fiber optic handles reticle illumination.  During the night shift, tritium illuminates the optic.  Batteries are only used as a back-up or when greater reticle illumination is required than can be supplied by either the tritium or the fiber optic.  

Stay Safe,
Gary